L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
L: linux-media@vger.kernel.org
S: Maintained
-F: drivers/media/platform/s5p-g2d/
+F: drivers/media/platform/samsung/s5p-g2d/
ARM/SAMSUNG S5P SERIES HDMI CEC SUBSYSTEM SUPPORT
M: Marek Szyprowski <m.szyprowski@samsung.com>
source "drivers/media/platform/qcom/Kconfig"
source "drivers/media/platform/renesas/Kconfig"
source "drivers/media/platform/rockchip/Kconfig"
-source "drivers/media/platform/s5p-g2d/Kconfig"
source "drivers/media/platform/s5p-jpeg/Kconfig"
source "drivers/media/platform/s5p-mfc/Kconfig"
source "drivers/media/platform/samsung/exynos-gsc/Kconfig"
source "drivers/media/platform/samsung/exynos4-is/Kconfig"
source "drivers/media/platform/samsung/s3c-camif/Kconfig"
+source "drivers/media/platform/samsung/s5p-g2d/Kconfig"
source "drivers/media/platform/sti/Kconfig"
source "drivers/media/platform/stm32/Kconfig"
source "drivers/media/platform/sunxi/Kconfig"
obj-y += renesas/
obj-y += rockchip/rga/
obj-y += rockchip/rkisp1/
-obj-y += s5p-g2d/
obj-y += s5p-jpeg/
obj-y += s5p-mfc/
obj-y += samsung/exynos-gsc/
obj-y += samsung/exynos4-is/
obj-y += samsung/s3c-camif/
+obj-y += samsung/s5p-g2d/
obj-y += sti/bdisp/
obj-y += sti/c8sectpfe/
obj-y += sti/delta/
+++ /dev/null
-config VIDEO_SAMSUNG_S5P_G2D
- tristate "Samsung S5P and EXYNOS4 G2D 2d graphics accelerator driver"
- depends on V4L_MEM2MEM_DRIVERS
- depends on VIDEO_DEV && VIDEO_V4L2
- depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
- select VIDEOBUF2_DMA_CONTIG
- select V4L2_MEM2MEM_DEV
- help
- This is a v4l2 driver for Samsung S5P and EXYNOS4 G2D
- 2d graphics accelerator.
-
+++ /dev/null
-# SPDX-License-Identifier: GPL-2.0-only
-s5p-g2d-objs := g2d.o g2d-hw.o
-
-obj-$(CONFIG_VIDEO_SAMSUNG_S5P_G2D) += s5p-g2d.o
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Samsung S5P G2D - 2D Graphics Accelerator Driver
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
- * Kamil Debski, <k.debski@samsung.com>
- */
-
-#include <linux/io.h>
-
-#include "g2d.h"
-#include "g2d-regs.h"
-
-#define w(x, a) writel((x), d->regs + (a))
-#define r(a) readl(d->regs + (a))
-
-/* g2d_reset clears all g2d registers */
-void g2d_reset(struct g2d_dev *d)
-{
- w(1, SOFT_RESET_REG);
-}
-
-void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f)
-{
- u32 n;
-
- w(0, SRC_SELECT_REG);
- w(f->stride & 0xFFFF, SRC_STRIDE_REG);
-
- n = f->o_height & 0xFFF;
- n <<= 16;
- n |= f->o_width & 0xFFF;
- w(n, SRC_LEFT_TOP_REG);
-
- n = f->bottom & 0xFFF;
- n <<= 16;
- n |= f->right & 0xFFF;
- w(n, SRC_RIGHT_BOTTOM_REG);
-
- w(f->fmt->hw, SRC_COLOR_MODE_REG);
-}
-
-void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a)
-{
- w(a, SRC_BASE_ADDR_REG);
-}
-
-void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f)
-{
- u32 n;
-
- w(0, DST_SELECT_REG);
- w(f->stride & 0xFFFF, DST_STRIDE_REG);
-
- n = f->o_height & 0xFFF;
- n <<= 16;
- n |= f->o_width & 0xFFF;
- w(n, DST_LEFT_TOP_REG);
-
- n = f->bottom & 0xFFF;
- n <<= 16;
- n |= f->right & 0xFFF;
- w(n, DST_RIGHT_BOTTOM_REG);
-
- w(f->fmt->hw, DST_COLOR_MODE_REG);
-}
-
-void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a)
-{
- w(a, DST_BASE_ADDR_REG);
-}
-
-void g2d_set_rop4(struct g2d_dev *d, u32 r)
-{
- w(r, ROP4_REG);
-}
-
-void g2d_set_flip(struct g2d_dev *d, u32 r)
-{
- w(r, SRC_MSK_DIRECT_REG);
-}
-
-void g2d_set_v41_stretch(struct g2d_dev *d, struct g2d_frame *src,
- struct g2d_frame *dst)
-{
- w(DEFAULT_SCALE_MODE, SRC_SCALE_CTRL_REG);
-
- /* inversed scaling factor: src is numerator */
- w((src->c_width << 16) / dst->c_width, SRC_XSCALE_REG);
- w((src->c_height << 16) / dst->c_height, SRC_YSCALE_REG);
-}
-
-void g2d_set_cmd(struct g2d_dev *d, u32 c)
-{
- w(c, BITBLT_COMMAND_REG);
-}
-
-void g2d_start(struct g2d_dev *d)
-{
- /* Clear cache */
- if (d->variant->hw_rev == TYPE_G2D_3X)
- w(0x7, CACHECTL_REG);
-
- /* Enable interrupt */
- w(1, INTEN_REG);
- /* Start G2D engine */
- w(1, BITBLT_START_REG);
-}
-
-void g2d_clear_int(struct g2d_dev *d)
-{
- w(1, INTC_PEND_REG);
-}
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Samsung S5P G2D - 2D Graphics Accelerator Driver
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
- * Kamil Debski, <k.debski@samsung.com>
- */
-
-/* General Registers */
-#define SOFT_RESET_REG 0x0000 /* Software reset reg */
-#define INTEN_REG 0x0004 /* Interrupt Enable reg */
-#define INTC_PEND_REG 0x000C /* Interrupt Control Pending reg */
-#define FIFO_STAT_REG 0x0010 /* Command FIFO Status reg */
-#define AXI_ID_MODE_REG 0x0014 /* AXI Read ID Mode reg */
-#define CACHECTL_REG 0x0018 /* Cache & Buffer clear reg */
-#define AXI_MODE_REG 0x001C /* AXI Mode reg */
-
-/* Command Registers */
-#define BITBLT_START_REG 0x0100 /* BitBLT Start reg */
-#define BITBLT_COMMAND_REG 0x0104 /* Command reg for BitBLT */
-
-/* Parameter Setting Registers (Rotate & Direction) */
-#define ROTATE_REG 0x0200 /* Rotation reg */
-#define SRC_MSK_DIRECT_REG 0x0204 /* Src and Mask Direction reg */
-#define DST_PAT_DIRECT_REG 0x0208 /* Dest and Pattern Direction reg */
-
-/* Parameter Setting Registers (Src) */
-#define SRC_SELECT_REG 0x0300 /* Src Image Selection reg */
-#define SRC_BASE_ADDR_REG 0x0304 /* Src Image Base Address reg */
-#define SRC_STRIDE_REG 0x0308 /* Src Stride reg */
-#define SRC_COLOR_MODE_REG 0x030C /* Src Image Color Mode reg */
-#define SRC_LEFT_TOP_REG 0x0310 /* Src Left Top Coordinate reg */
-#define SRC_RIGHT_BOTTOM_REG 0x0314 /* Src Right Bottom Coordinate reg */
-#define SRC_SCALE_CTRL_REG 0x0328 /* Src Scaling type select */
-#define SRC_XSCALE_REG 0x032c /* Src X Scaling ratio */
-#define SRC_YSCALE_REG 0x0330 /* Src Y Scaling ratio */
-
-/* Parameter Setting Registers (Dest) */
-#define DST_SELECT_REG 0x0400 /* Dest Image Selection reg */
-#define DST_BASE_ADDR_REG 0x0404 /* Dest Image Base Address reg */
-#define DST_STRIDE_REG 0x0408 /* Dest Stride reg */
-#define DST_COLOR_MODE_REG 0x040C /* Dest Image Color Mode reg */
-#define DST_LEFT_TOP_REG 0x0410 /* Dest Left Top Coordinate reg */
-#define DST_RIGHT_BOTTOM_REG 0x0414 /* Dest Right Bottom Coordinate reg */
-
-/* Parameter Setting Registers (Pattern) */
-#define PAT_BASE_ADDR_REG 0x0500 /* Pattern Image Base Address reg */
-#define PAT_SIZE_REG 0x0504 /* Pattern Image Size reg */
-#define PAT_COLOR_MODE_REG 0x0508 /* Pattern Image Color Mode reg */
-#define PAT_OFFSET_REG 0x050C /* Pattern Left Top Coordinate reg */
-#define PAT_STRIDE_REG 0x0510 /* Pattern Stride reg */
-
-/* Parameter Setting Registers (Mask) */
-#define MASK_BASE_ADDR_REG 0x0520 /* Mask Base Address reg */
-#define MASK_STRIDE_REG 0x0524 /* Mask Stride reg */
-
-/* Parameter Setting Registers (Clipping Window) */
-#define CW_LT_REG 0x0600 /* LeftTop coordinates of Clip Window */
-#define CW_RB_REG 0x0604 /* RightBottom coordinates of Clip
- Window */
-
-/* Parameter Setting Registers (ROP & Alpha Setting) */
-#define THIRD_OPERAND_REG 0x0610 /* Third Operand Selection reg */
-#define ROP4_REG 0x0614 /* Raster Operation reg */
-#define ALPHA_REG 0x0618 /* Alpha value, Fading offset value */
-
-/* Parameter Setting Registers (Color) */
-#define FG_COLOR_REG 0x0700 /* Foreground Color reg */
-#define BG_COLOR_REG 0x0704 /* Background Color reg */
-#define BS_COLOR_REG 0x0708 /* Blue Screen Color reg */
-
-/* Parameter Setting Registers (Color Key) */
-#define SRC_COLORKEY_CTRL_REG 0x0710 /* Src Colorkey control reg */
-#define SRC_COLORKEY_DR_MIN_REG 0x0714 /* Src Colorkey Decision Reference
- Min reg */
-#define SRC_COLORKEY_DR_MAX_REG 0x0718 /* Src Colorkey Decision Reference
- Max reg */
-#define DST_COLORKEY_CTRL_REG 0x071C /* Dest Colorkey control reg */
-#define DST_COLORKEY_DR_MIN_REG 0x0720 /* Dest Colorkey Decision Reference
- Min reg */
-#define DST_COLORKEY_DR_MAX_REG 0x0724 /* Dest Colorkey Decision Reference
- Max reg */
-
-/* Color mode values */
-
-#define ORDER_XRGB 0
-#define ORDER_RGBX 1
-#define ORDER_XBGR 2
-#define ORDER_BGRX 3
-
-#define MODE_XRGB_8888 0
-#define MODE_ARGB_8888 1
-#define MODE_RGB_565 2
-#define MODE_XRGB_1555 3
-#define MODE_ARGB_1555 4
-#define MODE_XRGB_4444 5
-#define MODE_ARGB_4444 6
-#define MODE_PACKED_RGB_888 7
-
-#define COLOR_MODE(o, m) (((o) << 4) | (m))
-
-/* ROP4 operation values */
-#define ROP4_COPY 0xCCCC
-#define ROP4_INVERT 0x3333
-
-/* Hardware limits */
-#define MAX_WIDTH 8000
-#define MAX_HEIGHT 8000
-
-#define G2D_TIMEOUT 500
-
-#define DEFAULT_WIDTH 100
-#define DEFAULT_HEIGHT 100
-
-#define DEFAULT_SCALE_MODE (2 << 0)
-
-/* Command mode register values */
-#define CMD_V3_ENABLE_STRETCH (1 << 4)
+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-or-later
-/*
- * Samsung S5P G2D - 2D Graphics Accelerator Driver
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
- * Kamil Debski, <k.debski@samsung.com>
- */
-
-#include <linux/module.h>
-#include <linux/fs.h>
-#include <linux/timer.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/clk.h>
-#include <linux/interrupt.h>
-#include <linux/of.h>
-
-#include <linux/platform_device.h>
-#include <media/v4l2-mem2mem.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ioctl.h>
-#include <media/videobuf2-v4l2.h>
-#include <media/videobuf2-dma-contig.h>
-
-#include "g2d.h"
-#include "g2d-regs.h"
-
-#define fh2ctx(__fh) container_of(__fh, struct g2d_ctx, fh)
-
-static struct g2d_fmt formats[] = {
- {
- .fourcc = V4L2_PIX_FMT_RGB32,
- .depth = 32,
- .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_8888),
- },
- {
- .fourcc = V4L2_PIX_FMT_RGB565X,
- .depth = 16,
- .hw = COLOR_MODE(ORDER_XRGB, MODE_RGB_565),
- },
- {
- .fourcc = V4L2_PIX_FMT_RGB555X,
- .depth = 16,
- .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_1555),
- },
- {
- .fourcc = V4L2_PIX_FMT_RGB444,
- .depth = 16,
- .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_4444),
- },
- {
- .fourcc = V4L2_PIX_FMT_RGB24,
- .depth = 24,
- .hw = COLOR_MODE(ORDER_XRGB, MODE_PACKED_RGB_888),
- },
-};
-#define NUM_FORMATS ARRAY_SIZE(formats)
-
-static struct g2d_frame def_frame = {
- .width = DEFAULT_WIDTH,
- .height = DEFAULT_HEIGHT,
- .c_width = DEFAULT_WIDTH,
- .c_height = DEFAULT_HEIGHT,
- .o_width = 0,
- .o_height = 0,
- .fmt = &formats[0],
- .right = DEFAULT_WIDTH,
- .bottom = DEFAULT_HEIGHT,
-};
-
-static struct g2d_fmt *find_fmt(struct v4l2_format *f)
-{
- unsigned int i;
- for (i = 0; i < NUM_FORMATS; i++) {
- if (formats[i].fourcc == f->fmt.pix.pixelformat)
- return &formats[i];
- }
- return NULL;
-}
-
-
-static struct g2d_frame *get_frame(struct g2d_ctx *ctx,
- enum v4l2_buf_type type)
-{
- switch (type) {
- case V4L2_BUF_TYPE_VIDEO_OUTPUT:
- return &ctx->in;
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- return &ctx->out;
- default:
- return ERR_PTR(-EINVAL);
- }
-}
-
-static int g2d_queue_setup(struct vb2_queue *vq,
- unsigned int *nbuffers, unsigned int *nplanes,
- unsigned int sizes[], struct device *alloc_devs[])
-{
- struct g2d_ctx *ctx = vb2_get_drv_priv(vq);
- struct g2d_frame *f = get_frame(ctx, vq->type);
-
- if (IS_ERR(f))
- return PTR_ERR(f);
-
- sizes[0] = f->size;
- *nplanes = 1;
-
- if (*nbuffers == 0)
- *nbuffers = 1;
-
- return 0;
-}
-
-static int g2d_buf_prepare(struct vb2_buffer *vb)
-{
- struct g2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
- struct g2d_frame *f = get_frame(ctx, vb->vb2_queue->type);
-
- if (IS_ERR(f))
- return PTR_ERR(f);
- vb2_set_plane_payload(vb, 0, f->size);
- return 0;
-}
-
-static void g2d_buf_queue(struct vb2_buffer *vb)
-{
- struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
- struct g2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
- v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
-}
-
-static const struct vb2_ops g2d_qops = {
- .queue_setup = g2d_queue_setup,
- .buf_prepare = g2d_buf_prepare,
- .buf_queue = g2d_buf_queue,
- .wait_prepare = vb2_ops_wait_prepare,
- .wait_finish = vb2_ops_wait_finish,
-};
-
-static int queue_init(void *priv, struct vb2_queue *src_vq,
- struct vb2_queue *dst_vq)
-{
- struct g2d_ctx *ctx = priv;
- int ret;
-
- src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
- src_vq->io_modes = VB2_MMAP | VB2_USERPTR;
- src_vq->drv_priv = ctx;
- src_vq->ops = &g2d_qops;
- src_vq->mem_ops = &vb2_dma_contig_memops;
- src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
- src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
- src_vq->lock = &ctx->dev->mutex;
- src_vq->dev = ctx->dev->v4l2_dev.dev;
-
- ret = vb2_queue_init(src_vq);
- if (ret)
- return ret;
-
- dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
- dst_vq->drv_priv = ctx;
- dst_vq->ops = &g2d_qops;
- dst_vq->mem_ops = &vb2_dma_contig_memops;
- dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
- dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
- dst_vq->lock = &ctx->dev->mutex;
- dst_vq->dev = ctx->dev->v4l2_dev.dev;
-
- return vb2_queue_init(dst_vq);
-}
-
-static int g2d_s_ctrl(struct v4l2_ctrl *ctrl)
-{
- struct g2d_ctx *ctx = container_of(ctrl->handler, struct g2d_ctx,
- ctrl_handler);
- unsigned long flags;
-
- spin_lock_irqsave(&ctx->dev->ctrl_lock, flags);
- switch (ctrl->id) {
- case V4L2_CID_COLORFX:
- if (ctrl->val == V4L2_COLORFX_NEGATIVE)
- ctx->rop = ROP4_INVERT;
- else
- ctx->rop = ROP4_COPY;
- break;
-
- case V4L2_CID_HFLIP:
- ctx->flip = ctx->ctrl_hflip->val | (ctx->ctrl_vflip->val << 1);
- break;
-
- }
- spin_unlock_irqrestore(&ctx->dev->ctrl_lock, flags);
- return 0;
-}
-
-static const struct v4l2_ctrl_ops g2d_ctrl_ops = {
- .s_ctrl = g2d_s_ctrl,
-};
-
-static int g2d_setup_ctrls(struct g2d_ctx *ctx)
-{
- struct g2d_dev *dev = ctx->dev;
-
- v4l2_ctrl_handler_init(&ctx->ctrl_handler, 3);
-
- ctx->ctrl_hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &g2d_ctrl_ops,
- V4L2_CID_HFLIP, 0, 1, 1, 0);
-
- ctx->ctrl_vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &g2d_ctrl_ops,
- V4L2_CID_VFLIP, 0, 1, 1, 0);
-
- v4l2_ctrl_new_std_menu(
- &ctx->ctrl_handler,
- &g2d_ctrl_ops,
- V4L2_CID_COLORFX,
- V4L2_COLORFX_NEGATIVE,
- ~((1 << V4L2_COLORFX_NONE) | (1 << V4L2_COLORFX_NEGATIVE)),
- V4L2_COLORFX_NONE);
-
- if (ctx->ctrl_handler.error) {
- int err = ctx->ctrl_handler.error;
- v4l2_err(&dev->v4l2_dev, "g2d_setup_ctrls failed\n");
- v4l2_ctrl_handler_free(&ctx->ctrl_handler);
- return err;
- }
-
- v4l2_ctrl_cluster(2, &ctx->ctrl_hflip);
-
- return 0;
-}
-
-static int g2d_open(struct file *file)
-{
- struct g2d_dev *dev = video_drvdata(file);
- struct g2d_ctx *ctx = NULL;
- int ret = 0;
-
- ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
- if (!ctx)
- return -ENOMEM;
- ctx->dev = dev;
- /* Set default formats */
- ctx->in = def_frame;
- ctx->out = def_frame;
-
- if (mutex_lock_interruptible(&dev->mutex)) {
- kfree(ctx);
- return -ERESTARTSYS;
- }
- ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);
- if (IS_ERR(ctx->fh.m2m_ctx)) {
- ret = PTR_ERR(ctx->fh.m2m_ctx);
- mutex_unlock(&dev->mutex);
- kfree(ctx);
- return ret;
- }
- v4l2_fh_init(&ctx->fh, video_devdata(file));
- file->private_data = &ctx->fh;
- v4l2_fh_add(&ctx->fh);
-
- g2d_setup_ctrls(ctx);
-
- /* Write the default values to the ctx struct */
- v4l2_ctrl_handler_setup(&ctx->ctrl_handler);
-
- ctx->fh.ctrl_handler = &ctx->ctrl_handler;
- mutex_unlock(&dev->mutex);
-
- v4l2_info(&dev->v4l2_dev, "instance opened\n");
- return 0;
-}
-
-static int g2d_release(struct file *file)
-{
- struct g2d_dev *dev = video_drvdata(file);
- struct g2d_ctx *ctx = fh2ctx(file->private_data);
-
- mutex_lock(&dev->mutex);
- v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
- mutex_unlock(&dev->mutex);
- v4l2_ctrl_handler_free(&ctx->ctrl_handler);
- v4l2_fh_del(&ctx->fh);
- v4l2_fh_exit(&ctx->fh);
- kfree(ctx);
- v4l2_info(&dev->v4l2_dev, "instance closed\n");
- return 0;
-}
-
-
-static int vidioc_querycap(struct file *file, void *priv,
- struct v4l2_capability *cap)
-{
- strscpy(cap->driver, G2D_NAME, sizeof(cap->driver));
- strscpy(cap->card, G2D_NAME, sizeof(cap->card));
- cap->bus_info[0] = 0;
- return 0;
-}
-
-static int vidioc_enum_fmt(struct file *file, void *prv, struct v4l2_fmtdesc *f)
-{
- if (f->index >= NUM_FORMATS)
- return -EINVAL;
- f->pixelformat = formats[f->index].fourcc;
- return 0;
-}
-
-static int vidioc_g_fmt(struct file *file, void *prv, struct v4l2_format *f)
-{
- struct g2d_ctx *ctx = prv;
- struct vb2_queue *vq;
- struct g2d_frame *frm;
-
- vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
- if (!vq)
- return -EINVAL;
- frm = get_frame(ctx, f->type);
- if (IS_ERR(frm))
- return PTR_ERR(frm);
-
- f->fmt.pix.width = frm->width;
- f->fmt.pix.height = frm->height;
- f->fmt.pix.field = V4L2_FIELD_NONE;
- f->fmt.pix.pixelformat = frm->fmt->fourcc;
- f->fmt.pix.bytesperline = (frm->width * frm->fmt->depth) >> 3;
- f->fmt.pix.sizeimage = frm->size;
- return 0;
-}
-
-static int vidioc_try_fmt(struct file *file, void *prv, struct v4l2_format *f)
-{
- struct g2d_fmt *fmt;
- enum v4l2_field *field;
-
- fmt = find_fmt(f);
- if (!fmt)
- return -EINVAL;
-
- field = &f->fmt.pix.field;
- if (*field == V4L2_FIELD_ANY)
- *field = V4L2_FIELD_NONE;
- else if (*field != V4L2_FIELD_NONE)
- return -EINVAL;
-
- if (f->fmt.pix.width > MAX_WIDTH)
- f->fmt.pix.width = MAX_WIDTH;
- if (f->fmt.pix.height > MAX_HEIGHT)
- f->fmt.pix.height = MAX_HEIGHT;
-
- if (f->fmt.pix.width < 1)
- f->fmt.pix.width = 1;
- if (f->fmt.pix.height < 1)
- f->fmt.pix.height = 1;
-
- f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
- f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
- return 0;
-}
-
-static int vidioc_s_fmt(struct file *file, void *prv, struct v4l2_format *f)
-{
- struct g2d_ctx *ctx = prv;
- struct g2d_dev *dev = ctx->dev;
- struct vb2_queue *vq;
- struct g2d_frame *frm;
- struct g2d_fmt *fmt;
- int ret = 0;
-
- /* Adjust all values accordingly to the hardware capabilities
- * and chosen format. */
- ret = vidioc_try_fmt(file, prv, f);
- if (ret)
- return ret;
- vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
- if (vb2_is_busy(vq)) {
- v4l2_err(&dev->v4l2_dev, "queue (%d) bust\n", f->type);
- return -EBUSY;
- }
- frm = get_frame(ctx, f->type);
- if (IS_ERR(frm))
- return PTR_ERR(frm);
- fmt = find_fmt(f);
- if (!fmt)
- return -EINVAL;
- frm->width = f->fmt.pix.width;
- frm->height = f->fmt.pix.height;
- frm->size = f->fmt.pix.sizeimage;
- /* Reset crop settings */
- frm->o_width = 0;
- frm->o_height = 0;
- frm->c_width = frm->width;
- frm->c_height = frm->height;
- frm->right = frm->width;
- frm->bottom = frm->height;
- frm->fmt = fmt;
- frm->stride = f->fmt.pix.bytesperline;
- return 0;
-}
-
-static int vidioc_g_selection(struct file *file, void *prv,
- struct v4l2_selection *s)
-{
- struct g2d_ctx *ctx = prv;
- struct g2d_frame *f;
-
- f = get_frame(ctx, s->type);
- if (IS_ERR(f))
- return PTR_ERR(f);
-
- switch (s->target) {
- case V4L2_SEL_TGT_CROP:
- case V4L2_SEL_TGT_CROP_DEFAULT:
- case V4L2_SEL_TGT_CROP_BOUNDS:
- if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
- return -EINVAL;
- break;
- case V4L2_SEL_TGT_COMPOSE:
- case V4L2_SEL_TGT_COMPOSE_DEFAULT:
- case V4L2_SEL_TGT_COMPOSE_BOUNDS:
- if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
- break;
- default:
- return -EINVAL;
- }
-
- switch (s->target) {
- case V4L2_SEL_TGT_CROP:
- case V4L2_SEL_TGT_COMPOSE:
- s->r.left = f->o_height;
- s->r.top = f->o_width;
- s->r.width = f->c_width;
- s->r.height = f->c_height;
- break;
- case V4L2_SEL_TGT_CROP_DEFAULT:
- case V4L2_SEL_TGT_CROP_BOUNDS:
- case V4L2_SEL_TGT_COMPOSE_DEFAULT:
- case V4L2_SEL_TGT_COMPOSE_BOUNDS:
- s->r.left = 0;
- s->r.top = 0;
- s->r.width = f->width;
- s->r.height = f->height;
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-
-static int vidioc_try_selection(struct file *file, void *prv,
- const struct v4l2_selection *s)
-{
- struct g2d_ctx *ctx = prv;
- struct g2d_dev *dev = ctx->dev;
- struct g2d_frame *f;
-
- f = get_frame(ctx, s->type);
- if (IS_ERR(f))
- return PTR_ERR(f);
-
- if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- if (s->target != V4L2_SEL_TGT_COMPOSE)
- return -EINVAL;
- } else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
- if (s->target != V4L2_SEL_TGT_CROP)
- return -EINVAL;
- }
-
- if (s->r.top < 0 || s->r.left < 0) {
- v4l2_err(&dev->v4l2_dev,
- "doesn't support negative values for top & left\n");
- return -EINVAL;
- }
-
- return 0;
-}
-
-static int vidioc_s_selection(struct file *file, void *prv,
- struct v4l2_selection *s)
-{
- struct g2d_ctx *ctx = prv;
- struct g2d_frame *f;
- int ret;
-
- ret = vidioc_try_selection(file, prv, s);
- if (ret)
- return ret;
- f = get_frame(ctx, s->type);
- if (IS_ERR(f))
- return PTR_ERR(f);
-
- f->c_width = s->r.width;
- f->c_height = s->r.height;
- f->o_width = s->r.left;
- f->o_height = s->r.top;
- f->bottom = f->o_height + f->c_height;
- f->right = f->o_width + f->c_width;
- return 0;
-}
-
-static void device_run(void *prv)
-{
- struct g2d_ctx *ctx = prv;
- struct g2d_dev *dev = ctx->dev;
- struct vb2_v4l2_buffer *src, *dst;
- unsigned long flags;
- u32 cmd = 0;
-
- dev->curr = ctx;
-
- src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
- dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
-
- clk_enable(dev->gate);
- g2d_reset(dev);
-
- spin_lock_irqsave(&dev->ctrl_lock, flags);
-
- g2d_set_src_size(dev, &ctx->in);
- g2d_set_src_addr(dev, vb2_dma_contig_plane_dma_addr(&src->vb2_buf, 0));
-
- g2d_set_dst_size(dev, &ctx->out);
- g2d_set_dst_addr(dev, vb2_dma_contig_plane_dma_addr(&dst->vb2_buf, 0));
-
- g2d_set_rop4(dev, ctx->rop);
- g2d_set_flip(dev, ctx->flip);
-
- if (ctx->in.c_width != ctx->out.c_width ||
- ctx->in.c_height != ctx->out.c_height) {
- if (dev->variant->hw_rev == TYPE_G2D_3X)
- cmd |= CMD_V3_ENABLE_STRETCH;
- else
- g2d_set_v41_stretch(dev, &ctx->in, &ctx->out);
- }
-
- g2d_set_cmd(dev, cmd);
- g2d_start(dev);
-
- spin_unlock_irqrestore(&dev->ctrl_lock, flags);
-}
-
-static irqreturn_t g2d_isr(int irq, void *prv)
-{
- struct g2d_dev *dev = prv;
- struct g2d_ctx *ctx = dev->curr;
- struct vb2_v4l2_buffer *src, *dst;
-
- g2d_clear_int(dev);
- clk_disable(dev->gate);
-
- BUG_ON(ctx == NULL);
-
- src = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
- dst = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
-
- BUG_ON(src == NULL);
- BUG_ON(dst == NULL);
-
- dst->timecode = src->timecode;
- dst->vb2_buf.timestamp = src->vb2_buf.timestamp;
- dst->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
- dst->flags |=
- src->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
-
- v4l2_m2m_buf_done(src, VB2_BUF_STATE_DONE);
- v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE);
- v4l2_m2m_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx);
-
- dev->curr = NULL;
- return IRQ_HANDLED;
-}
-
-static const struct v4l2_file_operations g2d_fops = {
- .owner = THIS_MODULE,
- .open = g2d_open,
- .release = g2d_release,
- .poll = v4l2_m2m_fop_poll,
- .unlocked_ioctl = video_ioctl2,
- .mmap = v4l2_m2m_fop_mmap,
-};
-
-static const struct v4l2_ioctl_ops g2d_ioctl_ops = {
- .vidioc_querycap = vidioc_querycap,
-
- .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt,
- .vidioc_g_fmt_vid_cap = vidioc_g_fmt,
- .vidioc_try_fmt_vid_cap = vidioc_try_fmt,
- .vidioc_s_fmt_vid_cap = vidioc_s_fmt,
-
- .vidioc_enum_fmt_vid_out = vidioc_enum_fmt,
- .vidioc_g_fmt_vid_out = vidioc_g_fmt,
- .vidioc_try_fmt_vid_out = vidioc_try_fmt,
- .vidioc_s_fmt_vid_out = vidioc_s_fmt,
-
- .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
- .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
- .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
- .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
-
- .vidioc_streamon = v4l2_m2m_ioctl_streamon,
- .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
-
- .vidioc_g_selection = vidioc_g_selection,
- .vidioc_s_selection = vidioc_s_selection,
-};
-
-static const struct video_device g2d_videodev = {
- .name = G2D_NAME,
- .fops = &g2d_fops,
- .ioctl_ops = &g2d_ioctl_ops,
- .minor = -1,
- .release = video_device_release,
- .vfl_dir = VFL_DIR_M2M,
-};
-
-static const struct v4l2_m2m_ops g2d_m2m_ops = {
- .device_run = device_run,
-};
-
-static const struct of_device_id exynos_g2d_match[];
-
-static int g2d_probe(struct platform_device *pdev)
-{
- struct g2d_dev *dev;
- struct video_device *vfd;
- const struct of_device_id *of_id;
- int ret = 0;
-
- dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
- if (!dev)
- return -ENOMEM;
-
- spin_lock_init(&dev->ctrl_lock);
- mutex_init(&dev->mutex);
- atomic_set(&dev->num_inst, 0);
-
- dev->regs = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(dev->regs))
- return PTR_ERR(dev->regs);
-
- dev->clk = clk_get(&pdev->dev, "sclk_fimg2d");
- if (IS_ERR(dev->clk)) {
- dev_err(&pdev->dev, "failed to get g2d clock\n");
- return -ENXIO;
- }
-
- ret = clk_prepare(dev->clk);
- if (ret) {
- dev_err(&pdev->dev, "failed to prepare g2d clock\n");
- goto put_clk;
- }
-
- dev->gate = clk_get(&pdev->dev, "fimg2d");
- if (IS_ERR(dev->gate)) {
- dev_err(&pdev->dev, "failed to get g2d clock gate\n");
- ret = -ENXIO;
- goto unprep_clk;
- }
-
- ret = clk_prepare(dev->gate);
- if (ret) {
- dev_err(&pdev->dev, "failed to prepare g2d clock gate\n");
- goto put_clk_gate;
- }
-
- ret = platform_get_irq(pdev, 0);
- if (ret < 0)
- goto unprep_clk_gate;
-
- dev->irq = ret;
-
- ret = devm_request_irq(&pdev->dev, dev->irq, g2d_isr,
- 0, pdev->name, dev);
- if (ret) {
- dev_err(&pdev->dev, "failed to install IRQ\n");
- goto unprep_clk_gate;
- }
-
- vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32));
-
- ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
- if (ret)
- goto unprep_clk_gate;
- vfd = video_device_alloc();
- if (!vfd) {
- v4l2_err(&dev->v4l2_dev, "Failed to allocate video device\n");
- ret = -ENOMEM;
- goto unreg_v4l2_dev;
- }
- *vfd = g2d_videodev;
- set_bit(V4L2_FL_QUIRK_INVERTED_CROP, &vfd->flags);
- vfd->lock = &dev->mutex;
- vfd->v4l2_dev = &dev->v4l2_dev;
- vfd->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
-
- platform_set_drvdata(pdev, dev);
- dev->m2m_dev = v4l2_m2m_init(&g2d_m2m_ops);
- if (IS_ERR(dev->m2m_dev)) {
- v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
- ret = PTR_ERR(dev->m2m_dev);
- goto rel_vdev;
- }
-
- def_frame.stride = (def_frame.width * def_frame.fmt->depth) >> 3;
-
- of_id = of_match_node(exynos_g2d_match, pdev->dev.of_node);
- if (!of_id) {
- ret = -ENODEV;
- goto free_m2m;
- }
- dev->variant = (struct g2d_variant *)of_id->data;
-
- ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0);
- if (ret) {
- v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
- goto free_m2m;
- }
- video_set_drvdata(vfd, dev);
- dev->vfd = vfd;
- v4l2_info(&dev->v4l2_dev, "device registered as /dev/video%d\n",
- vfd->num);
-
- return 0;
-
-free_m2m:
- v4l2_m2m_release(dev->m2m_dev);
-rel_vdev:
- video_device_release(vfd);
-unreg_v4l2_dev:
- v4l2_device_unregister(&dev->v4l2_dev);
-unprep_clk_gate:
- clk_unprepare(dev->gate);
-put_clk_gate:
- clk_put(dev->gate);
-unprep_clk:
- clk_unprepare(dev->clk);
-put_clk:
- clk_put(dev->clk);
-
- return ret;
-}
-
-static int g2d_remove(struct platform_device *pdev)
-{
- struct g2d_dev *dev = platform_get_drvdata(pdev);
-
- v4l2_info(&dev->v4l2_dev, "Removing " G2D_NAME);
- v4l2_m2m_release(dev->m2m_dev);
- video_unregister_device(dev->vfd);
- v4l2_device_unregister(&dev->v4l2_dev);
- vb2_dma_contig_clear_max_seg_size(&pdev->dev);
- clk_unprepare(dev->gate);
- clk_put(dev->gate);
- clk_unprepare(dev->clk);
- clk_put(dev->clk);
- return 0;
-}
-
-static struct g2d_variant g2d_drvdata_v3x = {
- .hw_rev = TYPE_G2D_3X, /* Revision 3.0 for S5PV210 and Exynos4210 */
-};
-
-static struct g2d_variant g2d_drvdata_v4x = {
- .hw_rev = TYPE_G2D_4X, /* Revision 4.1 for Exynos4X12 and Exynos5 */
-};
-
-static const struct of_device_id exynos_g2d_match[] = {
- {
- .compatible = "samsung,s5pv210-g2d",
- .data = &g2d_drvdata_v3x,
- }, {
- .compatible = "samsung,exynos4212-g2d",
- .data = &g2d_drvdata_v4x,
- },
- {},
-};
-MODULE_DEVICE_TABLE(of, exynos_g2d_match);
-
-static struct platform_driver g2d_pdrv = {
- .probe = g2d_probe,
- .remove = g2d_remove,
- .driver = {
- .name = G2D_NAME,
- .of_match_table = exynos_g2d_match,
- },
-};
-
-module_platform_driver(g2d_pdrv);
-
-MODULE_AUTHOR("Kamil Debski <k.debski@samsung.com>");
-MODULE_DESCRIPTION("S5P G2D 2d graphics accelerator driver");
-MODULE_LICENSE("GPL");
+++ /dev/null
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-/*
- * Samsung S5P G2D - 2D Graphics Accelerator Driver
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd.
- * Kamil Debski, <k.debski@samsung.com>
- */
-
-#include <linux/platform_device.h>
-#include <media/v4l2-device.h>
-#include <media/v4l2-ctrls.h>
-
-#define G2D_NAME "s5p-g2d"
-#define TYPE_G2D_3X 3
-#define TYPE_G2D_4X 4
-
-struct g2d_dev {
- struct v4l2_device v4l2_dev;
- struct v4l2_m2m_dev *m2m_dev;
- struct video_device *vfd;
- struct mutex mutex;
- spinlock_t ctrl_lock;
- atomic_t num_inst;
- void __iomem *regs;
- struct clk *clk;
- struct clk *gate;
- struct g2d_ctx *curr;
- struct g2d_variant *variant;
- int irq;
-};
-
-struct g2d_frame {
- /* Original dimensions */
- u32 width;
- u32 height;
- /* Crop size */
- u32 c_width;
- u32 c_height;
- /* Offset */
- u32 o_width;
- u32 o_height;
- /* Image format */
- struct g2d_fmt *fmt;
- /* Variables that can calculated once and reused */
- u32 stride;
- u32 bottom;
- u32 right;
- u32 size;
-};
-
-struct g2d_ctx {
- struct v4l2_fh fh;
- struct g2d_dev *dev;
- struct g2d_frame in;
- struct g2d_frame out;
- struct v4l2_ctrl *ctrl_hflip;
- struct v4l2_ctrl *ctrl_vflip;
- struct v4l2_ctrl_handler ctrl_handler;
- u32 rop;
- u32 flip;
-};
-
-struct g2d_fmt {
- u32 fourcc;
- int depth;
- u32 hw;
-};
-
-struct g2d_variant {
- unsigned short hw_rev;
-};
-
-void g2d_reset(struct g2d_dev *d);
-void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f);
-void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a);
-void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f);
-void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a);
-void g2d_start(struct g2d_dev *d);
-void g2d_clear_int(struct g2d_dev *d);
-void g2d_set_rop4(struct g2d_dev *d, u32 r);
-void g2d_set_flip(struct g2d_dev *d, u32 r);
-void g2d_set_v41_stretch(struct g2d_dev *d,
- struct g2d_frame *src, struct g2d_frame *dst);
-void g2d_set_cmd(struct g2d_dev *d, u32 c);
--- /dev/null
+config VIDEO_SAMSUNG_S5P_G2D
+ tristate "Samsung S5P and EXYNOS4 G2D 2d graphics accelerator driver"
+ depends on V4L_MEM2MEM_DRIVERS
+ depends on VIDEO_DEV && VIDEO_V4L2
+ depends on ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
+ select VIDEOBUF2_DMA_CONTIG
+ select V4L2_MEM2MEM_DEV
+ help
+ This is a v4l2 driver for Samsung S5P and EXYNOS4 G2D
+ 2d graphics accelerator.
+
--- /dev/null
+# SPDX-License-Identifier: GPL-2.0-only
+s5p-g2d-objs := g2d.o g2d-hw.o
+
+obj-$(CONFIG_VIDEO_SAMSUNG_S5P_G2D) += s5p-g2d.o
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Samsung S5P G2D - 2D Graphics Accelerator Driver
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Kamil Debski, <k.debski@samsung.com>
+ */
+
+#include <linux/io.h>
+
+#include "g2d.h"
+#include "g2d-regs.h"
+
+#define w(x, a) writel((x), d->regs + (a))
+#define r(a) readl(d->regs + (a))
+
+/* g2d_reset clears all g2d registers */
+void g2d_reset(struct g2d_dev *d)
+{
+ w(1, SOFT_RESET_REG);
+}
+
+void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f)
+{
+ u32 n;
+
+ w(0, SRC_SELECT_REG);
+ w(f->stride & 0xFFFF, SRC_STRIDE_REG);
+
+ n = f->o_height & 0xFFF;
+ n <<= 16;
+ n |= f->o_width & 0xFFF;
+ w(n, SRC_LEFT_TOP_REG);
+
+ n = f->bottom & 0xFFF;
+ n <<= 16;
+ n |= f->right & 0xFFF;
+ w(n, SRC_RIGHT_BOTTOM_REG);
+
+ w(f->fmt->hw, SRC_COLOR_MODE_REG);
+}
+
+void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a)
+{
+ w(a, SRC_BASE_ADDR_REG);
+}
+
+void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f)
+{
+ u32 n;
+
+ w(0, DST_SELECT_REG);
+ w(f->stride & 0xFFFF, DST_STRIDE_REG);
+
+ n = f->o_height & 0xFFF;
+ n <<= 16;
+ n |= f->o_width & 0xFFF;
+ w(n, DST_LEFT_TOP_REG);
+
+ n = f->bottom & 0xFFF;
+ n <<= 16;
+ n |= f->right & 0xFFF;
+ w(n, DST_RIGHT_BOTTOM_REG);
+
+ w(f->fmt->hw, DST_COLOR_MODE_REG);
+}
+
+void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a)
+{
+ w(a, DST_BASE_ADDR_REG);
+}
+
+void g2d_set_rop4(struct g2d_dev *d, u32 r)
+{
+ w(r, ROP4_REG);
+}
+
+void g2d_set_flip(struct g2d_dev *d, u32 r)
+{
+ w(r, SRC_MSK_DIRECT_REG);
+}
+
+void g2d_set_v41_stretch(struct g2d_dev *d, struct g2d_frame *src,
+ struct g2d_frame *dst)
+{
+ w(DEFAULT_SCALE_MODE, SRC_SCALE_CTRL_REG);
+
+ /* inversed scaling factor: src is numerator */
+ w((src->c_width << 16) / dst->c_width, SRC_XSCALE_REG);
+ w((src->c_height << 16) / dst->c_height, SRC_YSCALE_REG);
+}
+
+void g2d_set_cmd(struct g2d_dev *d, u32 c)
+{
+ w(c, BITBLT_COMMAND_REG);
+}
+
+void g2d_start(struct g2d_dev *d)
+{
+ /* Clear cache */
+ if (d->variant->hw_rev == TYPE_G2D_3X)
+ w(0x7, CACHECTL_REG);
+
+ /* Enable interrupt */
+ w(1, INTEN_REG);
+ /* Start G2D engine */
+ w(1, BITBLT_START_REG);
+}
+
+void g2d_clear_int(struct g2d_dev *d)
+{
+ w(1, INTC_PEND_REG);
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Samsung S5P G2D - 2D Graphics Accelerator Driver
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Kamil Debski, <k.debski@samsung.com>
+ */
+
+/* General Registers */
+#define SOFT_RESET_REG 0x0000 /* Software reset reg */
+#define INTEN_REG 0x0004 /* Interrupt Enable reg */
+#define INTC_PEND_REG 0x000C /* Interrupt Control Pending reg */
+#define FIFO_STAT_REG 0x0010 /* Command FIFO Status reg */
+#define AXI_ID_MODE_REG 0x0014 /* AXI Read ID Mode reg */
+#define CACHECTL_REG 0x0018 /* Cache & Buffer clear reg */
+#define AXI_MODE_REG 0x001C /* AXI Mode reg */
+
+/* Command Registers */
+#define BITBLT_START_REG 0x0100 /* BitBLT Start reg */
+#define BITBLT_COMMAND_REG 0x0104 /* Command reg for BitBLT */
+
+/* Parameter Setting Registers (Rotate & Direction) */
+#define ROTATE_REG 0x0200 /* Rotation reg */
+#define SRC_MSK_DIRECT_REG 0x0204 /* Src and Mask Direction reg */
+#define DST_PAT_DIRECT_REG 0x0208 /* Dest and Pattern Direction reg */
+
+/* Parameter Setting Registers (Src) */
+#define SRC_SELECT_REG 0x0300 /* Src Image Selection reg */
+#define SRC_BASE_ADDR_REG 0x0304 /* Src Image Base Address reg */
+#define SRC_STRIDE_REG 0x0308 /* Src Stride reg */
+#define SRC_COLOR_MODE_REG 0x030C /* Src Image Color Mode reg */
+#define SRC_LEFT_TOP_REG 0x0310 /* Src Left Top Coordinate reg */
+#define SRC_RIGHT_BOTTOM_REG 0x0314 /* Src Right Bottom Coordinate reg */
+#define SRC_SCALE_CTRL_REG 0x0328 /* Src Scaling type select */
+#define SRC_XSCALE_REG 0x032c /* Src X Scaling ratio */
+#define SRC_YSCALE_REG 0x0330 /* Src Y Scaling ratio */
+
+/* Parameter Setting Registers (Dest) */
+#define DST_SELECT_REG 0x0400 /* Dest Image Selection reg */
+#define DST_BASE_ADDR_REG 0x0404 /* Dest Image Base Address reg */
+#define DST_STRIDE_REG 0x0408 /* Dest Stride reg */
+#define DST_COLOR_MODE_REG 0x040C /* Dest Image Color Mode reg */
+#define DST_LEFT_TOP_REG 0x0410 /* Dest Left Top Coordinate reg */
+#define DST_RIGHT_BOTTOM_REG 0x0414 /* Dest Right Bottom Coordinate reg */
+
+/* Parameter Setting Registers (Pattern) */
+#define PAT_BASE_ADDR_REG 0x0500 /* Pattern Image Base Address reg */
+#define PAT_SIZE_REG 0x0504 /* Pattern Image Size reg */
+#define PAT_COLOR_MODE_REG 0x0508 /* Pattern Image Color Mode reg */
+#define PAT_OFFSET_REG 0x050C /* Pattern Left Top Coordinate reg */
+#define PAT_STRIDE_REG 0x0510 /* Pattern Stride reg */
+
+/* Parameter Setting Registers (Mask) */
+#define MASK_BASE_ADDR_REG 0x0520 /* Mask Base Address reg */
+#define MASK_STRIDE_REG 0x0524 /* Mask Stride reg */
+
+/* Parameter Setting Registers (Clipping Window) */
+#define CW_LT_REG 0x0600 /* LeftTop coordinates of Clip Window */
+#define CW_RB_REG 0x0604 /* RightBottom coordinates of Clip
+ Window */
+
+/* Parameter Setting Registers (ROP & Alpha Setting) */
+#define THIRD_OPERAND_REG 0x0610 /* Third Operand Selection reg */
+#define ROP4_REG 0x0614 /* Raster Operation reg */
+#define ALPHA_REG 0x0618 /* Alpha value, Fading offset value */
+
+/* Parameter Setting Registers (Color) */
+#define FG_COLOR_REG 0x0700 /* Foreground Color reg */
+#define BG_COLOR_REG 0x0704 /* Background Color reg */
+#define BS_COLOR_REG 0x0708 /* Blue Screen Color reg */
+
+/* Parameter Setting Registers (Color Key) */
+#define SRC_COLORKEY_CTRL_REG 0x0710 /* Src Colorkey control reg */
+#define SRC_COLORKEY_DR_MIN_REG 0x0714 /* Src Colorkey Decision Reference
+ Min reg */
+#define SRC_COLORKEY_DR_MAX_REG 0x0718 /* Src Colorkey Decision Reference
+ Max reg */
+#define DST_COLORKEY_CTRL_REG 0x071C /* Dest Colorkey control reg */
+#define DST_COLORKEY_DR_MIN_REG 0x0720 /* Dest Colorkey Decision Reference
+ Min reg */
+#define DST_COLORKEY_DR_MAX_REG 0x0724 /* Dest Colorkey Decision Reference
+ Max reg */
+
+/* Color mode values */
+
+#define ORDER_XRGB 0
+#define ORDER_RGBX 1
+#define ORDER_XBGR 2
+#define ORDER_BGRX 3
+
+#define MODE_XRGB_8888 0
+#define MODE_ARGB_8888 1
+#define MODE_RGB_565 2
+#define MODE_XRGB_1555 3
+#define MODE_ARGB_1555 4
+#define MODE_XRGB_4444 5
+#define MODE_ARGB_4444 6
+#define MODE_PACKED_RGB_888 7
+
+#define COLOR_MODE(o, m) (((o) << 4) | (m))
+
+/* ROP4 operation values */
+#define ROP4_COPY 0xCCCC
+#define ROP4_INVERT 0x3333
+
+/* Hardware limits */
+#define MAX_WIDTH 8000
+#define MAX_HEIGHT 8000
+
+#define G2D_TIMEOUT 500
+
+#define DEFAULT_WIDTH 100
+#define DEFAULT_HEIGHT 100
+
+#define DEFAULT_SCALE_MODE (2 << 0)
+
+/* Command mode register values */
+#define CMD_V3_ENABLE_STRETCH (1 << 4)
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Samsung S5P G2D - 2D Graphics Accelerator Driver
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Kamil Debski, <k.debski@samsung.com>
+ */
+
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/timer.h>
+#include <linux/sched.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/of.h>
+
+#include <linux/platform_device.h>
+#include <media/v4l2-mem2mem.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-v4l2.h>
+#include <media/videobuf2-dma-contig.h>
+
+#include "g2d.h"
+#include "g2d-regs.h"
+
+#define fh2ctx(__fh) container_of(__fh, struct g2d_ctx, fh)
+
+static struct g2d_fmt formats[] = {
+ {
+ .fourcc = V4L2_PIX_FMT_RGB32,
+ .depth = 32,
+ .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_8888),
+ },
+ {
+ .fourcc = V4L2_PIX_FMT_RGB565X,
+ .depth = 16,
+ .hw = COLOR_MODE(ORDER_XRGB, MODE_RGB_565),
+ },
+ {
+ .fourcc = V4L2_PIX_FMT_RGB555X,
+ .depth = 16,
+ .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_1555),
+ },
+ {
+ .fourcc = V4L2_PIX_FMT_RGB444,
+ .depth = 16,
+ .hw = COLOR_MODE(ORDER_XRGB, MODE_XRGB_4444),
+ },
+ {
+ .fourcc = V4L2_PIX_FMT_RGB24,
+ .depth = 24,
+ .hw = COLOR_MODE(ORDER_XRGB, MODE_PACKED_RGB_888),
+ },
+};
+#define NUM_FORMATS ARRAY_SIZE(formats)
+
+static struct g2d_frame def_frame = {
+ .width = DEFAULT_WIDTH,
+ .height = DEFAULT_HEIGHT,
+ .c_width = DEFAULT_WIDTH,
+ .c_height = DEFAULT_HEIGHT,
+ .o_width = 0,
+ .o_height = 0,
+ .fmt = &formats[0],
+ .right = DEFAULT_WIDTH,
+ .bottom = DEFAULT_HEIGHT,
+};
+
+static struct g2d_fmt *find_fmt(struct v4l2_format *f)
+{
+ unsigned int i;
+ for (i = 0; i < NUM_FORMATS; i++) {
+ if (formats[i].fourcc == f->fmt.pix.pixelformat)
+ return &formats[i];
+ }
+ return NULL;
+}
+
+
+static struct g2d_frame *get_frame(struct g2d_ctx *ctx,
+ enum v4l2_buf_type type)
+{
+ switch (type) {
+ case V4L2_BUF_TYPE_VIDEO_OUTPUT:
+ return &ctx->in;
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ return &ctx->out;
+ default:
+ return ERR_PTR(-EINVAL);
+ }
+}
+
+static int g2d_queue_setup(struct vb2_queue *vq,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], struct device *alloc_devs[])
+{
+ struct g2d_ctx *ctx = vb2_get_drv_priv(vq);
+ struct g2d_frame *f = get_frame(ctx, vq->type);
+
+ if (IS_ERR(f))
+ return PTR_ERR(f);
+
+ sizes[0] = f->size;
+ *nplanes = 1;
+
+ if (*nbuffers == 0)
+ *nbuffers = 1;
+
+ return 0;
+}
+
+static int g2d_buf_prepare(struct vb2_buffer *vb)
+{
+ struct g2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ struct g2d_frame *f = get_frame(ctx, vb->vb2_queue->type);
+
+ if (IS_ERR(f))
+ return PTR_ERR(f);
+ vb2_set_plane_payload(vb, 0, f->size);
+ return 0;
+}
+
+static void g2d_buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct g2d_ctx *ctx = vb2_get_drv_priv(vb->vb2_queue);
+ v4l2_m2m_buf_queue(ctx->fh.m2m_ctx, vbuf);
+}
+
+static const struct vb2_ops g2d_qops = {
+ .queue_setup = g2d_queue_setup,
+ .buf_prepare = g2d_buf_prepare,
+ .buf_queue = g2d_buf_queue,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+};
+
+static int queue_init(void *priv, struct vb2_queue *src_vq,
+ struct vb2_queue *dst_vq)
+{
+ struct g2d_ctx *ctx = priv;
+ int ret;
+
+ src_vq->type = V4L2_BUF_TYPE_VIDEO_OUTPUT;
+ src_vq->io_modes = VB2_MMAP | VB2_USERPTR;
+ src_vq->drv_priv = ctx;
+ src_vq->ops = &g2d_qops;
+ src_vq->mem_ops = &vb2_dma_contig_memops;
+ src_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+ src_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+ src_vq->lock = &ctx->dev->mutex;
+ src_vq->dev = ctx->dev->v4l2_dev.dev;
+
+ ret = vb2_queue_init(src_vq);
+ if (ret)
+ return ret;
+
+ dst_vq->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ dst_vq->io_modes = VB2_MMAP | VB2_USERPTR;
+ dst_vq->drv_priv = ctx;
+ dst_vq->ops = &g2d_qops;
+ dst_vq->mem_ops = &vb2_dma_contig_memops;
+ dst_vq->buf_struct_size = sizeof(struct v4l2_m2m_buffer);
+ dst_vq->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_COPY;
+ dst_vq->lock = &ctx->dev->mutex;
+ dst_vq->dev = ctx->dev->v4l2_dev.dev;
+
+ return vb2_queue_init(dst_vq);
+}
+
+static int g2d_s_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct g2d_ctx *ctx = container_of(ctrl->handler, struct g2d_ctx,
+ ctrl_handler);
+ unsigned long flags;
+
+ spin_lock_irqsave(&ctx->dev->ctrl_lock, flags);
+ switch (ctrl->id) {
+ case V4L2_CID_COLORFX:
+ if (ctrl->val == V4L2_COLORFX_NEGATIVE)
+ ctx->rop = ROP4_INVERT;
+ else
+ ctx->rop = ROP4_COPY;
+ break;
+
+ case V4L2_CID_HFLIP:
+ ctx->flip = ctx->ctrl_hflip->val | (ctx->ctrl_vflip->val << 1);
+ break;
+
+ }
+ spin_unlock_irqrestore(&ctx->dev->ctrl_lock, flags);
+ return 0;
+}
+
+static const struct v4l2_ctrl_ops g2d_ctrl_ops = {
+ .s_ctrl = g2d_s_ctrl,
+};
+
+static int g2d_setup_ctrls(struct g2d_ctx *ctx)
+{
+ struct g2d_dev *dev = ctx->dev;
+
+ v4l2_ctrl_handler_init(&ctx->ctrl_handler, 3);
+
+ ctx->ctrl_hflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &g2d_ctrl_ops,
+ V4L2_CID_HFLIP, 0, 1, 1, 0);
+
+ ctx->ctrl_vflip = v4l2_ctrl_new_std(&ctx->ctrl_handler, &g2d_ctrl_ops,
+ V4L2_CID_VFLIP, 0, 1, 1, 0);
+
+ v4l2_ctrl_new_std_menu(
+ &ctx->ctrl_handler,
+ &g2d_ctrl_ops,
+ V4L2_CID_COLORFX,
+ V4L2_COLORFX_NEGATIVE,
+ ~((1 << V4L2_COLORFX_NONE) | (1 << V4L2_COLORFX_NEGATIVE)),
+ V4L2_COLORFX_NONE);
+
+ if (ctx->ctrl_handler.error) {
+ int err = ctx->ctrl_handler.error;
+ v4l2_err(&dev->v4l2_dev, "g2d_setup_ctrls failed\n");
+ v4l2_ctrl_handler_free(&ctx->ctrl_handler);
+ return err;
+ }
+
+ v4l2_ctrl_cluster(2, &ctx->ctrl_hflip);
+
+ return 0;
+}
+
+static int g2d_open(struct file *file)
+{
+ struct g2d_dev *dev = video_drvdata(file);
+ struct g2d_ctx *ctx = NULL;
+ int ret = 0;
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return -ENOMEM;
+ ctx->dev = dev;
+ /* Set default formats */
+ ctx->in = def_frame;
+ ctx->out = def_frame;
+
+ if (mutex_lock_interruptible(&dev->mutex)) {
+ kfree(ctx);
+ return -ERESTARTSYS;
+ }
+ ctx->fh.m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init);
+ if (IS_ERR(ctx->fh.m2m_ctx)) {
+ ret = PTR_ERR(ctx->fh.m2m_ctx);
+ mutex_unlock(&dev->mutex);
+ kfree(ctx);
+ return ret;
+ }
+ v4l2_fh_init(&ctx->fh, video_devdata(file));
+ file->private_data = &ctx->fh;
+ v4l2_fh_add(&ctx->fh);
+
+ g2d_setup_ctrls(ctx);
+
+ /* Write the default values to the ctx struct */
+ v4l2_ctrl_handler_setup(&ctx->ctrl_handler);
+
+ ctx->fh.ctrl_handler = &ctx->ctrl_handler;
+ mutex_unlock(&dev->mutex);
+
+ v4l2_info(&dev->v4l2_dev, "instance opened\n");
+ return 0;
+}
+
+static int g2d_release(struct file *file)
+{
+ struct g2d_dev *dev = video_drvdata(file);
+ struct g2d_ctx *ctx = fh2ctx(file->private_data);
+
+ mutex_lock(&dev->mutex);
+ v4l2_m2m_ctx_release(ctx->fh.m2m_ctx);
+ mutex_unlock(&dev->mutex);
+ v4l2_ctrl_handler_free(&ctx->ctrl_handler);
+ v4l2_fh_del(&ctx->fh);
+ v4l2_fh_exit(&ctx->fh);
+ kfree(ctx);
+ v4l2_info(&dev->v4l2_dev, "instance closed\n");
+ return 0;
+}
+
+
+static int vidioc_querycap(struct file *file, void *priv,
+ struct v4l2_capability *cap)
+{
+ strscpy(cap->driver, G2D_NAME, sizeof(cap->driver));
+ strscpy(cap->card, G2D_NAME, sizeof(cap->card));
+ cap->bus_info[0] = 0;
+ return 0;
+}
+
+static int vidioc_enum_fmt(struct file *file, void *prv, struct v4l2_fmtdesc *f)
+{
+ if (f->index >= NUM_FORMATS)
+ return -EINVAL;
+ f->pixelformat = formats[f->index].fourcc;
+ return 0;
+}
+
+static int vidioc_g_fmt(struct file *file, void *prv, struct v4l2_format *f)
+{
+ struct g2d_ctx *ctx = prv;
+ struct vb2_queue *vq;
+ struct g2d_frame *frm;
+
+ vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
+ if (!vq)
+ return -EINVAL;
+ frm = get_frame(ctx, f->type);
+ if (IS_ERR(frm))
+ return PTR_ERR(frm);
+
+ f->fmt.pix.width = frm->width;
+ f->fmt.pix.height = frm->height;
+ f->fmt.pix.field = V4L2_FIELD_NONE;
+ f->fmt.pix.pixelformat = frm->fmt->fourcc;
+ f->fmt.pix.bytesperline = (frm->width * frm->fmt->depth) >> 3;
+ f->fmt.pix.sizeimage = frm->size;
+ return 0;
+}
+
+static int vidioc_try_fmt(struct file *file, void *prv, struct v4l2_format *f)
+{
+ struct g2d_fmt *fmt;
+ enum v4l2_field *field;
+
+ fmt = find_fmt(f);
+ if (!fmt)
+ return -EINVAL;
+
+ field = &f->fmt.pix.field;
+ if (*field == V4L2_FIELD_ANY)
+ *field = V4L2_FIELD_NONE;
+ else if (*field != V4L2_FIELD_NONE)
+ return -EINVAL;
+
+ if (f->fmt.pix.width > MAX_WIDTH)
+ f->fmt.pix.width = MAX_WIDTH;
+ if (f->fmt.pix.height > MAX_HEIGHT)
+ f->fmt.pix.height = MAX_HEIGHT;
+
+ if (f->fmt.pix.width < 1)
+ f->fmt.pix.width = 1;
+ if (f->fmt.pix.height < 1)
+ f->fmt.pix.height = 1;
+
+ f->fmt.pix.bytesperline = (f->fmt.pix.width * fmt->depth) >> 3;
+ f->fmt.pix.sizeimage = f->fmt.pix.height * f->fmt.pix.bytesperline;
+ return 0;
+}
+
+static int vidioc_s_fmt(struct file *file, void *prv, struct v4l2_format *f)
+{
+ struct g2d_ctx *ctx = prv;
+ struct g2d_dev *dev = ctx->dev;
+ struct vb2_queue *vq;
+ struct g2d_frame *frm;
+ struct g2d_fmt *fmt;
+ int ret = 0;
+
+ /* Adjust all values accordingly to the hardware capabilities
+ * and chosen format. */
+ ret = vidioc_try_fmt(file, prv, f);
+ if (ret)
+ return ret;
+ vq = v4l2_m2m_get_vq(ctx->fh.m2m_ctx, f->type);
+ if (vb2_is_busy(vq)) {
+ v4l2_err(&dev->v4l2_dev, "queue (%d) bust\n", f->type);
+ return -EBUSY;
+ }
+ frm = get_frame(ctx, f->type);
+ if (IS_ERR(frm))
+ return PTR_ERR(frm);
+ fmt = find_fmt(f);
+ if (!fmt)
+ return -EINVAL;
+ frm->width = f->fmt.pix.width;
+ frm->height = f->fmt.pix.height;
+ frm->size = f->fmt.pix.sizeimage;
+ /* Reset crop settings */
+ frm->o_width = 0;
+ frm->o_height = 0;
+ frm->c_width = frm->width;
+ frm->c_height = frm->height;
+ frm->right = frm->width;
+ frm->bottom = frm->height;
+ frm->fmt = fmt;
+ frm->stride = f->fmt.pix.bytesperline;
+ return 0;
+}
+
+static int vidioc_g_selection(struct file *file, void *prv,
+ struct v4l2_selection *s)
+{
+ struct g2d_ctx *ctx = prv;
+ struct g2d_frame *f;
+
+ f = get_frame(ctx, s->type);
+ if (IS_ERR(f))
+ return PTR_ERR(f);
+
+ switch (s->target) {
+ case V4L2_SEL_TGT_CROP:
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+ return -EINVAL;
+ break;
+ case V4L2_SEL_TGT_COMPOSE:
+ case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+ if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ switch (s->target) {
+ case V4L2_SEL_TGT_CROP:
+ case V4L2_SEL_TGT_COMPOSE:
+ s->r.left = f->o_height;
+ s->r.top = f->o_width;
+ s->r.width = f->c_width;
+ s->r.height = f->c_height;
+ break;
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+ case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+ s->r.left = 0;
+ s->r.top = 0;
+ s->r.width = f->width;
+ s->r.height = f->height;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int vidioc_try_selection(struct file *file, void *prv,
+ const struct v4l2_selection *s)
+{
+ struct g2d_ctx *ctx = prv;
+ struct g2d_dev *dev = ctx->dev;
+ struct g2d_frame *f;
+
+ f = get_frame(ctx, s->type);
+ if (IS_ERR(f))
+ return PTR_ERR(f);
+
+ if (s->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
+ if (s->target != V4L2_SEL_TGT_COMPOSE)
+ return -EINVAL;
+ } else if (s->type == V4L2_BUF_TYPE_VIDEO_OUTPUT) {
+ if (s->target != V4L2_SEL_TGT_CROP)
+ return -EINVAL;
+ }
+
+ if (s->r.top < 0 || s->r.left < 0) {
+ v4l2_err(&dev->v4l2_dev,
+ "doesn't support negative values for top & left\n");
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int vidioc_s_selection(struct file *file, void *prv,
+ struct v4l2_selection *s)
+{
+ struct g2d_ctx *ctx = prv;
+ struct g2d_frame *f;
+ int ret;
+
+ ret = vidioc_try_selection(file, prv, s);
+ if (ret)
+ return ret;
+ f = get_frame(ctx, s->type);
+ if (IS_ERR(f))
+ return PTR_ERR(f);
+
+ f->c_width = s->r.width;
+ f->c_height = s->r.height;
+ f->o_width = s->r.left;
+ f->o_height = s->r.top;
+ f->bottom = f->o_height + f->c_height;
+ f->right = f->o_width + f->c_width;
+ return 0;
+}
+
+static void device_run(void *prv)
+{
+ struct g2d_ctx *ctx = prv;
+ struct g2d_dev *dev = ctx->dev;
+ struct vb2_v4l2_buffer *src, *dst;
+ unsigned long flags;
+ u32 cmd = 0;
+
+ dev->curr = ctx;
+
+ src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx);
+ dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+
+ clk_enable(dev->gate);
+ g2d_reset(dev);
+
+ spin_lock_irqsave(&dev->ctrl_lock, flags);
+
+ g2d_set_src_size(dev, &ctx->in);
+ g2d_set_src_addr(dev, vb2_dma_contig_plane_dma_addr(&src->vb2_buf, 0));
+
+ g2d_set_dst_size(dev, &ctx->out);
+ g2d_set_dst_addr(dev, vb2_dma_contig_plane_dma_addr(&dst->vb2_buf, 0));
+
+ g2d_set_rop4(dev, ctx->rop);
+ g2d_set_flip(dev, ctx->flip);
+
+ if (ctx->in.c_width != ctx->out.c_width ||
+ ctx->in.c_height != ctx->out.c_height) {
+ if (dev->variant->hw_rev == TYPE_G2D_3X)
+ cmd |= CMD_V3_ENABLE_STRETCH;
+ else
+ g2d_set_v41_stretch(dev, &ctx->in, &ctx->out);
+ }
+
+ g2d_set_cmd(dev, cmd);
+ g2d_start(dev);
+
+ spin_unlock_irqrestore(&dev->ctrl_lock, flags);
+}
+
+static irqreturn_t g2d_isr(int irq, void *prv)
+{
+ struct g2d_dev *dev = prv;
+ struct g2d_ctx *ctx = dev->curr;
+ struct vb2_v4l2_buffer *src, *dst;
+
+ g2d_clear_int(dev);
+ clk_disable(dev->gate);
+
+ BUG_ON(ctx == NULL);
+
+ src = v4l2_m2m_src_buf_remove(ctx->fh.m2m_ctx);
+ dst = v4l2_m2m_dst_buf_remove(ctx->fh.m2m_ctx);
+
+ BUG_ON(src == NULL);
+ BUG_ON(dst == NULL);
+
+ dst->timecode = src->timecode;
+ dst->vb2_buf.timestamp = src->vb2_buf.timestamp;
+ dst->flags &= ~V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
+ dst->flags |=
+ src->flags & V4L2_BUF_FLAG_TSTAMP_SRC_MASK;
+
+ v4l2_m2m_buf_done(src, VB2_BUF_STATE_DONE);
+ v4l2_m2m_buf_done(dst, VB2_BUF_STATE_DONE);
+ v4l2_m2m_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx);
+
+ dev->curr = NULL;
+ return IRQ_HANDLED;
+}
+
+static const struct v4l2_file_operations g2d_fops = {
+ .owner = THIS_MODULE,
+ .open = g2d_open,
+ .release = g2d_release,
+ .poll = v4l2_m2m_fop_poll,
+ .unlocked_ioctl = video_ioctl2,
+ .mmap = v4l2_m2m_fop_mmap,
+};
+
+static const struct v4l2_ioctl_ops g2d_ioctl_ops = {
+ .vidioc_querycap = vidioc_querycap,
+
+ .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt,
+ .vidioc_g_fmt_vid_cap = vidioc_g_fmt,
+ .vidioc_try_fmt_vid_cap = vidioc_try_fmt,
+ .vidioc_s_fmt_vid_cap = vidioc_s_fmt,
+
+ .vidioc_enum_fmt_vid_out = vidioc_enum_fmt,
+ .vidioc_g_fmt_vid_out = vidioc_g_fmt,
+ .vidioc_try_fmt_vid_out = vidioc_try_fmt,
+ .vidioc_s_fmt_vid_out = vidioc_s_fmt,
+
+ .vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
+ .vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
+ .vidioc_qbuf = v4l2_m2m_ioctl_qbuf,
+ .vidioc_dqbuf = v4l2_m2m_ioctl_dqbuf,
+
+ .vidioc_streamon = v4l2_m2m_ioctl_streamon,
+ .vidioc_streamoff = v4l2_m2m_ioctl_streamoff,
+
+ .vidioc_g_selection = vidioc_g_selection,
+ .vidioc_s_selection = vidioc_s_selection,
+};
+
+static const struct video_device g2d_videodev = {
+ .name = G2D_NAME,
+ .fops = &g2d_fops,
+ .ioctl_ops = &g2d_ioctl_ops,
+ .minor = -1,
+ .release = video_device_release,
+ .vfl_dir = VFL_DIR_M2M,
+};
+
+static const struct v4l2_m2m_ops g2d_m2m_ops = {
+ .device_run = device_run,
+};
+
+static const struct of_device_id exynos_g2d_match[];
+
+static int g2d_probe(struct platform_device *pdev)
+{
+ struct g2d_dev *dev;
+ struct video_device *vfd;
+ const struct of_device_id *of_id;
+ int ret = 0;
+
+ dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+ if (!dev)
+ return -ENOMEM;
+
+ spin_lock_init(&dev->ctrl_lock);
+ mutex_init(&dev->mutex);
+ atomic_set(&dev->num_inst, 0);
+
+ dev->regs = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(dev->regs))
+ return PTR_ERR(dev->regs);
+
+ dev->clk = clk_get(&pdev->dev, "sclk_fimg2d");
+ if (IS_ERR(dev->clk)) {
+ dev_err(&pdev->dev, "failed to get g2d clock\n");
+ return -ENXIO;
+ }
+
+ ret = clk_prepare(dev->clk);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to prepare g2d clock\n");
+ goto put_clk;
+ }
+
+ dev->gate = clk_get(&pdev->dev, "fimg2d");
+ if (IS_ERR(dev->gate)) {
+ dev_err(&pdev->dev, "failed to get g2d clock gate\n");
+ ret = -ENXIO;
+ goto unprep_clk;
+ }
+
+ ret = clk_prepare(dev->gate);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to prepare g2d clock gate\n");
+ goto put_clk_gate;
+ }
+
+ ret = platform_get_irq(pdev, 0);
+ if (ret < 0)
+ goto unprep_clk_gate;
+
+ dev->irq = ret;
+
+ ret = devm_request_irq(&pdev->dev, dev->irq, g2d_isr,
+ 0, pdev->name, dev);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to install IRQ\n");
+ goto unprep_clk_gate;
+ }
+
+ vb2_dma_contig_set_max_seg_size(&pdev->dev, DMA_BIT_MASK(32));
+
+ ret = v4l2_device_register(&pdev->dev, &dev->v4l2_dev);
+ if (ret)
+ goto unprep_clk_gate;
+ vfd = video_device_alloc();
+ if (!vfd) {
+ v4l2_err(&dev->v4l2_dev, "Failed to allocate video device\n");
+ ret = -ENOMEM;
+ goto unreg_v4l2_dev;
+ }
+ *vfd = g2d_videodev;
+ set_bit(V4L2_FL_QUIRK_INVERTED_CROP, &vfd->flags);
+ vfd->lock = &dev->mutex;
+ vfd->v4l2_dev = &dev->v4l2_dev;
+ vfd->device_caps = V4L2_CAP_VIDEO_M2M | V4L2_CAP_STREAMING;
+
+ platform_set_drvdata(pdev, dev);
+ dev->m2m_dev = v4l2_m2m_init(&g2d_m2m_ops);
+ if (IS_ERR(dev->m2m_dev)) {
+ v4l2_err(&dev->v4l2_dev, "Failed to init mem2mem device\n");
+ ret = PTR_ERR(dev->m2m_dev);
+ goto rel_vdev;
+ }
+
+ def_frame.stride = (def_frame.width * def_frame.fmt->depth) >> 3;
+
+ of_id = of_match_node(exynos_g2d_match, pdev->dev.of_node);
+ if (!of_id) {
+ ret = -ENODEV;
+ goto free_m2m;
+ }
+ dev->variant = (struct g2d_variant *)of_id->data;
+
+ ret = video_register_device(vfd, VFL_TYPE_VIDEO, 0);
+ if (ret) {
+ v4l2_err(&dev->v4l2_dev, "Failed to register video device\n");
+ goto free_m2m;
+ }
+ video_set_drvdata(vfd, dev);
+ dev->vfd = vfd;
+ v4l2_info(&dev->v4l2_dev, "device registered as /dev/video%d\n",
+ vfd->num);
+
+ return 0;
+
+free_m2m:
+ v4l2_m2m_release(dev->m2m_dev);
+rel_vdev:
+ video_device_release(vfd);
+unreg_v4l2_dev:
+ v4l2_device_unregister(&dev->v4l2_dev);
+unprep_clk_gate:
+ clk_unprepare(dev->gate);
+put_clk_gate:
+ clk_put(dev->gate);
+unprep_clk:
+ clk_unprepare(dev->clk);
+put_clk:
+ clk_put(dev->clk);
+
+ return ret;
+}
+
+static int g2d_remove(struct platform_device *pdev)
+{
+ struct g2d_dev *dev = platform_get_drvdata(pdev);
+
+ v4l2_info(&dev->v4l2_dev, "Removing " G2D_NAME);
+ v4l2_m2m_release(dev->m2m_dev);
+ video_unregister_device(dev->vfd);
+ v4l2_device_unregister(&dev->v4l2_dev);
+ vb2_dma_contig_clear_max_seg_size(&pdev->dev);
+ clk_unprepare(dev->gate);
+ clk_put(dev->gate);
+ clk_unprepare(dev->clk);
+ clk_put(dev->clk);
+ return 0;
+}
+
+static struct g2d_variant g2d_drvdata_v3x = {
+ .hw_rev = TYPE_G2D_3X, /* Revision 3.0 for S5PV210 and Exynos4210 */
+};
+
+static struct g2d_variant g2d_drvdata_v4x = {
+ .hw_rev = TYPE_G2D_4X, /* Revision 4.1 for Exynos4X12 and Exynos5 */
+};
+
+static const struct of_device_id exynos_g2d_match[] = {
+ {
+ .compatible = "samsung,s5pv210-g2d",
+ .data = &g2d_drvdata_v3x,
+ }, {
+ .compatible = "samsung,exynos4212-g2d",
+ .data = &g2d_drvdata_v4x,
+ },
+ {},
+};
+MODULE_DEVICE_TABLE(of, exynos_g2d_match);
+
+static struct platform_driver g2d_pdrv = {
+ .probe = g2d_probe,
+ .remove = g2d_remove,
+ .driver = {
+ .name = G2D_NAME,
+ .of_match_table = exynos_g2d_match,
+ },
+};
+
+module_platform_driver(g2d_pdrv);
+
+MODULE_AUTHOR("Kamil Debski <k.debski@samsung.com>");
+MODULE_DESCRIPTION("S5P G2D 2d graphics accelerator driver");
+MODULE_LICENSE("GPL");
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Samsung S5P G2D - 2D Graphics Accelerator Driver
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Kamil Debski, <k.debski@samsung.com>
+ */
+
+#include <linux/platform_device.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+
+#define G2D_NAME "s5p-g2d"
+#define TYPE_G2D_3X 3
+#define TYPE_G2D_4X 4
+
+struct g2d_dev {
+ struct v4l2_device v4l2_dev;
+ struct v4l2_m2m_dev *m2m_dev;
+ struct video_device *vfd;
+ struct mutex mutex;
+ spinlock_t ctrl_lock;
+ atomic_t num_inst;
+ void __iomem *regs;
+ struct clk *clk;
+ struct clk *gate;
+ struct g2d_ctx *curr;
+ struct g2d_variant *variant;
+ int irq;
+};
+
+struct g2d_frame {
+ /* Original dimensions */
+ u32 width;
+ u32 height;
+ /* Crop size */
+ u32 c_width;
+ u32 c_height;
+ /* Offset */
+ u32 o_width;
+ u32 o_height;
+ /* Image format */
+ struct g2d_fmt *fmt;
+ /* Variables that can calculated once and reused */
+ u32 stride;
+ u32 bottom;
+ u32 right;
+ u32 size;
+};
+
+struct g2d_ctx {
+ struct v4l2_fh fh;
+ struct g2d_dev *dev;
+ struct g2d_frame in;
+ struct g2d_frame out;
+ struct v4l2_ctrl *ctrl_hflip;
+ struct v4l2_ctrl *ctrl_vflip;
+ struct v4l2_ctrl_handler ctrl_handler;
+ u32 rop;
+ u32 flip;
+};
+
+struct g2d_fmt {
+ u32 fourcc;
+ int depth;
+ u32 hw;
+};
+
+struct g2d_variant {
+ unsigned short hw_rev;
+};
+
+void g2d_reset(struct g2d_dev *d);
+void g2d_set_src_size(struct g2d_dev *d, struct g2d_frame *f);
+void g2d_set_src_addr(struct g2d_dev *d, dma_addr_t a);
+void g2d_set_dst_size(struct g2d_dev *d, struct g2d_frame *f);
+void g2d_set_dst_addr(struct g2d_dev *d, dma_addr_t a);
+void g2d_start(struct g2d_dev *d);
+void g2d_clear_int(struct g2d_dev *d);
+void g2d_set_rop4(struct g2d_dev *d, u32 r);
+void g2d_set_flip(struct g2d_dev *d, u32 r);
+void g2d_set_v41_stretch(struct g2d_dev *d,
+ struct g2d_frame *src, struct g2d_frame *dst);
+void g2d_set_cmd(struct g2d_dev *d, u32 c);
projects / linux.git / commitdiff